JP3925652B2 - Roll paper holder and roll paper feeding device provided with the roll paper holder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roll paper holder that is mounted on a recording apparatus such as an ink jet printer that can record on both recording media, for example, roll paper and cut sheet media, and a roll paper that includes the roll paper holder. The present invention relates to a feeding device.
[0002]
[Prior art]
Conventionally, when recording on a recording medium having a relatively large size exceeding A3 size, a recording apparatus such as a large-sized inkjet printer compatible with roll paper has been used. Recently, in order to cope with diversification of user needs, as shown in Patent Document 1 below, a general-purpose type relatively small-sized ink jet printer having a roll paper recording function has appeared. In such an ink jet printer, as shown in FIG. 7 and FIG. 8, after the roll paper transport path is routed behind the automatic sheet feeder for the cut sheet medium, the recording is performed below the recording head through the lower part of the automatic feeder. Some are set to transport to position.
[0003]
In the ink jet printer 101 having such a configuration, the conveyance guide 107 is spaced at an appropriate interval along the rear surface of the feeding tray 105 using the space on the rear surface side of the feeding tray 105 in the automatic feeding device 103. Is provided. The upper end of the transport guide 107 is related to the mounting position of the roll paper holder 109 and is set at a relatively high position with respect to the printer main body 111. A plurality of guides arranged in the width direction are arranged at the upper end of the conveyance guide 107 so that the roll paper R fed from the roll paper holder 109 is smoothly carried between the feeding tray 105 and the conveyance guide 107. A roller 113 is provided.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-173256
[Problems to be solved by the invention]
However, as shown in FIGS. 7 and 8, the attachment position of the roll paper holder 109 and the upper end of the conveyance guide 107 are set at a relatively high position with respect to the printer main body 111. As a result, the roll paper R enters at a steep angle, preventing smooth conveyance of the roll paper R. In this case, the roll paper R can be smoothly conveyed by shifting the mounting position of the roll paper holder 109 below the printer main body 111, but the edge guide 117 may be attached to the rear surface of the feed tray 105. It has been difficult to shift the mounting position of the roll paper holder 109 downward.
[0006]
Further, the mounting of the roll paper R on the roll paper holder 109 and the adjustment of the attachment position of the guide edge 117 are performed on the user side, but the roll paper holder 109 and the edge guide 117 are independent of each other. The user often forgets to adjust the mounting position of the edge guide 117, and problems such as being recorded obliquely with respect to the roll paper R have occurred.
[0007]
Accordingly, an object of the present invention is to enable smooth conveyance of the roll paper, and in addition, adjustment of the mounting position of the edge guide is performed accompanying the loading of the roll paper even if the user is not particularly conscious. A roll paper holder having an edge guide function for roll paper and a roll paper feeding device provided with the roll paper holder are provided.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the first aspect of the roll paper holder according to the present invention is capable of recording on both the recording media of the roll paper and the cut sheet medium, and the transport path of the roll paper is a cut sheet form. A roll paper holder that is mounted on a recording apparatus that is routed behind the automatic feeding apparatus for a medium and then conveyed toward a recording position below a recording head through the automatic feeding apparatus. The paper holder is characterized in that an edge guide for roll paper is provided in a part of the roll paper holder.
According to the first aspect of the present invention, it is possible to shift the attachment position of the roll paper holder downward, so that the roll paper can be smoothly fed out and smoothly conveyed.
[0009]
According to a second aspect of the roll paper holder according to the present invention, in the first aspect, the roll paper holder corresponds to a fixed holder attached in a fixed state to the recording apparatus main body and a width dimension of the roll paper. And a movable holder attached to the recording apparatus main body so as to be displaceable, so that the edge guide can slide in the recording medium width direction with respect to the movable holder. It is attached as follows.
[0010]
According to the second aspect of the present invention, since the edge of the roll paper is regulated by the edge guide simultaneously with the loading of the roll paper to the roll paper holder, adjustment of the edge guide is not forgotten. Further, since the edge guide is configured to be slidable with respect to the movable holder, the roll paper is mounted with a slight gap in the recording medium width direction so that the roll paper can be smoothly fed out. Even in such a case, it is possible to finely adjust the mounting position of the edge guide to the optimum position.
[0011]
According to a third aspect of the roll paper holder of the present invention, in the second aspect, the edge guide has a guide body that is curved so as to follow the shape of the surrounding cover portion of the movable holder, and the guide The main body is provided with an engaging groove portion that engages with a guide rib provided on a peripheral cover portion of the movable holder, and an elastic locking piece that is pressed against and locked by a spring action on a part of the movable holder. And
According to the third aspect of the present invention, the edge guide can slide parallel to the recording medium width direction with respect to the movable holder, and when the roll paper is fed out by the locking action of the elastic locking piece. Even if the force from the edge of the roll paper is generated, the locking position is maintained as it is and does not move.
[0012]
Further, the fourth aspect of the roll paper holder according to the present invention is capable of recording on both the recording media of the roll paper and the cut sheet medium, and the roll paper conveyance path is automatically supplied for the cut sheet medium. A roll paper feeding device that is applied to a recording device that is routed behind a feeding device and then transported toward a recording position below a recording head through a lower portion of an automatic feeding device. The apparatus includes a roll paper holder provided with an edge guide for roll paper in a part of the roll paper holder, and a conveyance guide for guiding the roll paper fed from the roll paper holder toward a recording position below the recording head. The roll paper holder is provided so as to be positioned closer to the lower end with respect to the recording apparatus main body so that the roll paper can be smoothly drawn out in the tangential direction, and the conveyance guide As the roll paper enters the smooth conveyance path, characterized by being set to be positioned at the lower end closer to the recording apparatus main body position of the upper end of the conveying guide.
[0013]
According to the fourth aspect of the present invention, the roll paper is unreasonably drawn out in the tangential direction, so that the roll paper can be smoothly conveyed, and the edge guide is provided on the roll paper holder side. There is no need to worry about the mounting position on the rear surface of the feeding tray.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which a roll paper holder according to the present invention and a roll paper feeding device including the roll paper holder are applied to an ink jet printer as an example of a recording apparatus will be described in detail. In the following description, the basic configuration of the ink jet printer will be described first according to the recording medium conveyance path, and then the specific configuration of the roll paper holder and the roll paper feeding device according to the present invention and the operating state thereof will be described. It explains in order.
[0015]
FIG. 1 is a side sectional view showing a basic configuration of an ink jet printer. The ink jet printer 1 has a structure capable of performing recording (recording) on both recording media of roll paper R and cut sheet S. First, the basic configuration of the inkjet printer 1 will be described according to the conveyance path of the cut sheet S. The cut sheet S is a sheet that has been cut into a standard size in advance, such as B5 and A4, and is stacked on the feeding tray 7 in the automatic feeding device 5 provided at the rear of the recording apparatus main body 3. Placed.
[0016]
The cut sheet S on the feeding tray 7 is raised at a predetermined timing as the rotating shaft 11 of the feeding roller 9 rotates, and is pushed up toward the feeding roller 9. As the feeding roller 9 rotates, the main body of the recording apparatus is turned one by one with the help of double feed prevention means such as a separation pad or a retarded roller (not shown) in order from the cut sheet S located on the uppermost surface. 3 is taken in. Inside the recording apparatus main body 3 is provided a recording medium feed roller pair 17 constituted by a recording medium feed driving roller 13 and a recording medium feed driven roller 15, and this recording medium feed roller pair 17. The sheet paper S sandwiched between the recording heads 19 is guided to a recording position below the recording head 19. The recording medium feed driven roller 15 is held by a rotary driven roller holder 21 that is biased toward the recording medium feed drive roller 13 by a biasing means (not shown).
[0017]
The recording head 19 is provided below the carriage 23 and is driven to reciprocate in the main scanning direction orthogonal to the conveyance direction of the cut sheet S while being guided by the guide shaft 27 with the ink cartridge 25 mounted. A platen 29 is provided below the recording head 19 with a predetermined gap through which the cut sheet S passes. The platen 29 supports the lower surface of the cut sheet S and has a function of making a strict gap with the recording head 19 that affects recording quality, that is, a paper gap constant. The recording head 19 is provided with an ink discharge nozzle (not shown), and enables recording over almost the entire surface of the cut sheet S by conveying the cut sheet S and moving the carriage 23 in the main scanning direction. Yes.
[0018]
On the downstream side of the recording head 19 in the paper conveyance direction, a discharge roller pair 35 including a discharge drive roller 31 and a discharge jagged roller 33 is provided. The discharge roller pair 35 has a transporting action for guiding the recorded cut sheet S onto a discharge stacker 37 positioned further downstream in the paper transport direction. The discharge stacker 37 is configured by including a stacker main body 39 provided so as to be rotatable with respect to the recording apparatus main body 3, and an extension stacker 41 provided in a nested manner with respect to the stacker main body 39.
[0019]
Next, the basic configuration of the inkjet printer 1 unique to the roll paper R will be mainly described according to the conveyance path of the roll paper R. The roll paper R is a continuous long paper having a predetermined width wound around a roll core, and is held in a freely rotatable state by a roll paper holder 45 according to the present invention. The feeding end of the roll paper R held by the roll paper holder 45 passes through the rear surface of the above-mentioned automatic feeding device 5 for the cut sheet S and reaches the lower side of the automatic feeding device 5, and the recording medium described above. The paper is guided to the recording position below the recording head 19 while receiving the nipping paper feeding action by the feed roller pair 17.
[0020]
A conveyance guide 6 for guiding the roll paper R downward from the rear surface of the automatic feeding device 5 is provided below the rear surface side of the feeding tray 7 in the automatic feeding device 5. The transport guide 6 is a constituent member of the roll paper feeding device 2 according to the present invention together with the roll paper holder 45 according to the present invention. The roll paper R that has reached the recording medium feed roller pair 17 is transported to the discharge roller pair 35 along the same transport path as that of the sheet paper S described above, and further downstream in the recording medium transport direction from the discharge stacker 37. It is transported to a cutter device 43 provided on the side and cut into a predetermined length.
[0021]
FIG. 2 is a perspective view showing a state in which the roll paper feeding device according to the present invention is applied to the recording apparatus main body. FIG. 3 is a front view showing a state in which the roll paper holder according to the present invention is seen through from the recording apparatus main body side, and FIG. 4 is a left side view of the roll paper holder of FIG. 5 is an exploded perspective view showing a movable holder and an edge guide in the roll paper holder of FIG. 3, and FIG. 6 is a perspective view showing a state in which the edge guide is attached to the movable holder.
[0022]
Next, based on these drawings, the configuration of the roll paper holder 45 according to the present invention will be mainly described together with the configuration of the roll paper feeding device 2 according to the present invention. As shown in FIG. 1, the roll paper holder 45 is slightly different from the conventional attachment position shown in FIG. 7 with respect to the recording apparatus main body 3 so that the roll paper R is smoothly drawn out in the tangential direction. It is provided so as to be located near the lower end of the minute. The roll paper holder 45 is attached to the recording apparatus main body 3 so that the roll paper holder 45 can move in the width direction of the roll paper R according to the width dimension of the fixed paper 47 and the roll paper R attached to the recording apparatus main body 3 in a fixed state. On the other hand, a movable holder 49 attached in a displaceable state is provided.
[0023]
Further, the fixed holder 47 and the movable holder 49 are provided with an attachment 51 including a fitting portion 50 that is fitted into the roll core of the rolled paper R in a wound state. The attachment 51 is attached to the fixed holder 47 and the movable holder 49 so as to be able to rotate in an idle state in the circumferential direction, and acts as a rotation axis of the roll paper R in a substantially wound state. I play.
[0024]
In addition, an operation knob 52 that is used when manually rotating the roll paper R is provided at the end of the attachment 51 opposite to the side where the fitting portion 50 is provided. The fixed holder 47 is a cylindrical member whose one end is open, and includes a circumferential cover portion 53 that covers a peripheral surface near the end portion of the roll paper R, and an end surface portion that closes one end surface of the peripheral cover portion 53. 55.
[0025]
The circumferential cover 53 is formed with a narrow width at a site on the roll paper R feed side (attachment side with the recording apparatus main body 3) and a relatively wide width at other sites. Further, a locking claw 57 that engages with a locking groove (not shown) formed with respect to the recording apparatus main body 3 is provided at an attachment portion with the recording apparatus main body 3. Further, a through-opening window 59 for receiving the operation knob 52 in the attachment 51 is opened at the center of the end surface part 55, and the outer periphery of the base of the operation knob 52 of the attachment 51 is formed in the peripheral part of the window 59. An engaging step portion 63 that engages with the claw portion 61 formed on the surface is provided.
[0026]
The movable holder 49 basically has the same configuration as the fixed holder 47. Since the movable holder 49 holds the roll paper R by the clamping action with the fixed holder 47, the movable holder 49 is formed in a shape symmetrical to the fixed holder 47. Accordingly, the same components and the same reference numerals as those used in the fixed holder 47 are used for the same components. The movable holder 49 is provided with a guide rib 65 having an inverted L-shaped cross section extending in parallel to the recording medium width direction with respect to the circumferential cover portion 53 as a specific configuration, and an edge guide 67 is formed using the guide rib 65. It is slidably attached.
[0027]
The edge guide 67 abuts on the edge of the roll paper R that has been fed out, and guides the roll paper R so that the roll paper R is guided in parallel to the recording position below the recording medium feed roller pair 17 or the recording head 19. It is a member. The edge guide 67 has a guide main body 69 that is curved so as to follow the shape of the peripheral covering portion 53 of the movable holder 49, and the guide main body 69 is provided with respect to the peripheral covering portion 53 of the movable holder 49. The engaging groove 71 that engages with the guide rib 65, the operating portion 73 that is a clue when moving the edge guide 67, and the operating portion 73 that is pressed against the peripheral covering portion 53 of the movable holder 49 by a spring action. An elastic locking piece 75 provided at the base and an elastic locking piece 77 that presses against the pedestal surface 58 on which the locking claw 57 is formed by a spring action are provided.
[0028]
The roll paper feeding device 2 according to the present invention supports the roll paper holder 45 having the above-described configuration and the roll paper R fed from the roll paper holder 45 from below and guides it toward the recording position below the recording head 19. It is comprised by providing the conveyance guide 6 to perform. A space between the conveyance guide 6 and the rear surface of the feeding tray 7 in the automatic feeding device 5 is a conveyance path for guiding the roll paper R to the recording position. The roll paper holder 45 is provided so as to be positioned relatively downward with respect to the recording apparatus main body 3 so that the roll paper R is smoothly drawn out in the tangential direction. The upper end of the conveyance guide 6 is set relatively below the recording apparatus body 3 so that the rolled paper R smoothly enters the conveyance path.
[0029]
Next, the operation state of the roll paper holder 45 and the roll paper feeding device 2 together with the procedure of loading and feeding the roll paper R performed using the roll paper holder 45 and the roll paper feeding device 2 will be described. explain. When the roll paper R is attached to the inkjet printer 1, the fitting portion 50 in the attachment 51 is fitted into the roll core of the roll paper R so that the roll paper R is sandwiched between the fixed holder 47 and the movable holder 49. In this state, the roll paper R is held integrally with the attachment 51 so as to be able to idle in the circumferential direction with respect to the fixed holder 47 and the movable holder 49.
[0030]
Further, as the movable holder 49 moves, the edge guide 67 also moves at the same time, so that the mounting position of the edge guide 67 is adjusted at the same time when the roll paper R is mounted on the roll paper holder 45. Further, in order to smoothly feed the roll paper R, a slight gap G is formed between the roll paper R and the fixed holder 47 or the movable holder 49 as shown in FIG. Accordingly, there is some variation in the attachment position of the roll paper R in the paper width direction within the gap G. Therefore, a finger is put on the elastic locking piece 75 provided at the base of the operation portion 73 and the upward position is slightly increased. The latching force due to the pressure contact is reduced by pulling up by a minute amount, and at the same time, the finger is put on the operation portion 73 and the edge guide 67 is slid in a desired direction. As a result, the edge guide 67 comes into contact with one end side of the roll paper R in the paper width direction, and the attachment position of the edge guide 67 can be finely adjusted.
[0031]
In this way, the roll paper R held by the roll paper holder 45 is configured as the roll paper feeding device 2 of the present invention, and the roll paper holder 45 is attached below the recording apparatus main body 3; Since the position of the upper end of the conveyance guide 6 is set so as to be relatively lower than the recording apparatus main body 3, the conveyance guide 6 is unreasonably extended in the tangential direction. In the guided state, the recording medium feed roller pair 17 or the recording head 19 is transported in parallel and smoothly toward the recording position below the recording head 19.
[0032]
The roll paper holder 45 according to the present invention and the roll paper feeding device 2 provided with the roll paper holder are basically configured as described above, but are within a range not departing from the gist of the present invention. It is of course possible to change or omit the general configuration. For example, when there is a possibility that the fed roll paper R comes into contact with the upper end of the conveyance guide 6, a guide roller or the like can be provided on the upper end of the conveyance guide 6 as appropriate. In addition, a stopper or the like is provided to prevent the edge guide 67 from being inadvertently detached from the movable holder 49, or an engagement groove is formed in the peripheral covering portion 53 of the movable holder 49. It is also possible to provide a guide rib or the like that engages with the engaging groove.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a basic configuration of an ink jet printer.
FIG. 2 is a perspective view illustrating a usage state of the roll paper feeding device.
FIG. 3 is a front view showing a roll paper holder.
FIG. 4 is a left side view illustrating a roll paper holder.
FIG. 5 is an exploded perspective view showing a movable holder and an edge guide.
FIG. 6 is a perspective view of an edge guide attached to a movable holder.
FIG. 7 is a side sectional view showing a mounting state of a conventional roll paper holder.
FIG. 8 is an explanatory view showing a problem of a conventional roll paper holder.
[Explanation of symbols]
1 Inkjet printer (recording device), 2 Roll paper feeding device,
3 recording device body, 5 automatic feeding device, 6 transport guide,
7 Feed tray, 9 Feed roller, 11 Rotating shaft,
13 recording medium feed driving roller, 15 recording medium feed driven roller,
17 Recording medium feed roller pair, 19 Recording head,
21 driven roller holder, 23 carriage, 25 ink cartridge,
27 guide shaft, 29 platen, 31 discharge drive roller,
33 Discharge roller, 35 Discharge roller pair, 37 Discharge stacker,
39 Stacker body, 41 Extension stacker, 43 Cutter device,
45 roll paper holder, 47 fixed holder, 49 movable holder, 50 fitting part,
51 Attachment, 52 Operation knob, 53 Surrounding part, 55 End face part,
57 locking claws, 58 pedestal surface, 59 window portion, 61 claw portion, 63 engaging step portion,
65 guide ribs, 67 edge guides, 69 guide bodies, 71 engaging grooves,
73 operation part, 75 elastic locking piece, 77 elastic locking piece, R roll paper,
S cut paper, G gap

Claims (3)

The recording head can record on both recording media of roll paper and cut sheet media, and after the roll paper conveyance path is routed behind the automatic feed device for the cut sheet medium, the recording head passes through the lower side of the automatic feed device A roll paper holder attached to a recording apparatus that is transported toward a lower recording position,
The roll paper holder is provided with an edge guide for the roll paper to a portion of the rolled-paper holder,
The roll paper holder is fixedly attached to the recording apparatus main body, and is detachably attached to the recording apparatus main body so that the roll paper holder can move in the width direction of the roll paper according to the width dimension of the roll paper. A movable holder,
The edge guide is attached so as to be able to slide in the recording medium width direction with respect to the movable holder,
When the movable holder is attached to the recording apparatus main body, at least one side surface of the roll paper is not in contact with the fixed holder or the inner surface of the movable holder facing the side surface, and the roll paper is used as the roll paper holder. A roll paper holder, wherein the roll paper holder is attached at a position where it can be attached . 2. The edge guide according to claim 1 , wherein the edge guide has a guide body that is curved so as to follow the shape of the surrounding cover portion of the movable holder, and the guide body engages with a guide rib provided on the surrounding cover portion of the movable holder. A roll paper holder comprising: an engaging groove portion; and an elastic locking piece that is pressed against and locked to a part of the movable holder by a spring action. The recording head can record on both recording media of roll paper and cut sheet media, and after the roll paper conveyance path is routed behind the automatic feed device for the cut sheet medium, the recording head passes through the lower side of the automatic feed device A roll paper feeding device applied to a recording device that is transported toward a lower recording position, the roll paper feeding device comprising: a roll paper holder according to claim 1 ; and a roll. A conveyance guide that guides the roll paper fed from the paper holder toward the recording position below the recording head, and the roll paper holder supports the recording apparatus main body so that the roll paper is smoothly fed out in the tangential direction. The transport guide is provided so as to be positioned closer to the lower end, and the upper end of the transport guide is positioned relative to the recording apparatus main body so that the fed roll paper smoothly enters the transport path. Feeding device of the roll paper having a roll paper holder is characterized in that set to be positioned near the lower end.

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